20291280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1433}}^1$

素因数の和:1508

約数の個数: 80

約数和(自身を含む): 64013760

約数和(自身を除く): 43722480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1433, 1770, 2360, 2832, 2866, 3540, 4299, 4720, 5732, 7080, 7165, 8598, 11464, 14160, 14330, 17196, 21495, 22928, 28660, 34392, 42990, 57320, 68784, 84547, 85980, 114640, 169094, 171960, 253641, 338188, 343920, 422735, 507282, 676376, 845470, 1014564, 1268205, 1352752, 1690940, 2029128, 2536410, 3381880, 4058256, 5072820, 6763760, 10145640, 20291280]

約数ペア:

[(1, 20291280), (2, 10145640), (3, 6763760), (4, 5072820), (5, 4058256), (6, 3381880), (8, 2536410), (10, 2029128), (12, 1690940), (15, 1352752), (16, 1268205), (20, 1014564), (24, 845470), (30, 676376), (40, 507282), (48, 422735), (59, 343920), (60, 338188), (80, 253641), (118, 171960), (120, 169094), (177, 114640), (236, 85980), (240, 84547), (295, 68784), (354, 57320), (472, 42990), (590, 34392), (708, 28660), (885, 22928), (944, 21495), (1180, 17196), (1416, 14330), (1433, 14160), (1770, 11464), (2360, 8598), (2832, 7165), (2866, 7080), (3540, 5732), (4299, 4720)]